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Message-ID: <1F6A12D6D90C4D1792369B0AFC82173A@poopsackHD>
From: "Daniel Corbe" <corbe@corbe.net>
To: "Daniel Kalchev" <daniel@digsys.bg>, "Rumen Telbizov" <telbizov@gmail.com>
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 <3E619068-9015-4013-A99E-CEE8948C7455@digsys.bg>
In-Reply-To: <3E619068-9015-4013-A99E-CEE8948C7455@digsys.bg>
Subject: Re: FreeBSD 9.1 ix driver vlan problem
Date: Wed, 25 Sep 2013 14:03:19 -0400
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Cc: freebsd-stable@freebsd.org, Jack Vogel <jack.vogel@intel.com>
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Why would disabling STP on the switch *shorten* the amount of time it takes 
for the port to come up?  At least on Cisco switches, it takes ~45 seconds 
for the switching topology to converge with STP disabled.  Shorter periods 
if you enable portfast or uplinkfast.


-----Original Message----- 
From: Daniel Kalchev
Sent: Wednesday, September 25, 2013 4:31 AM
To: Rumen Telbizov
Cc: freebsd-stable@freebsd.org ; Jack Vogel
Subject: Re: FreeBSD 9.1 ix driver vlan problem


On 25.09.2013, at 02:16, Rumen Telbizov <telbizov@gmail.com> wrote:

>
>
> Example:
> ifconfig vlan200 create  # this is OK
> ifconfig vlan200 inet 1.2.3.1/30  vlan 200 vlandev ix1 description DEBUG #
> this second line makes the rest of the vlans freeze for 6-7 seconds
>
> On the switch side (Juniper) the physical interface flaps. There's nothing
> in logs/dmesg.
>

Might be, you have spanning tree enabled on the switch port and when the 
interface "flaps" it needs time to converge. Disable spanning tree on the 
port and the reset will be very short.

Daniel

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